Download Series 611T/612T

Series 611T/612T
Single/Dual Channel Isolators
Universal Process Current/Voltage Input
USER’S MANUAL
ACROMAG INCORPORATED
30765 South Wixom Road
P.O. BOX 437
Wixom, MI 48393-7037 U.S.A.
Tel: (248) 624-1541
Fax: (248) 624-9234
Copyright 1999, Acromag, Inc., Printed in the USA.
Data and specifications are subject to change without notice.
8500-602-G06G002
Series 611T/612T Isolator User’s Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
1.0 INTRODUCTION
Safety Summary - Symbols on equipment:
!
These instructions cover hardware functionality of the
transmitter models listed in Table 1. Supplementary sheets are
attached for units with special options or features.
Means “Caution, refer to this manual for additional
information”.
The information contained in this manual is subject to change
without notice. Acromag, Inc., makes no warranty of any kind
with regard to this material, including, but not limited to, the
implied warranties of merchantability and fitness for a particular
purpose. Further, Acromag, Inc., assumes no responsibility for
any errors that may appear in this manual and makes no
commitment to update, or keep current, the information contained
in this manual. No part of this manual may be copied or
reproduced in any form, without the prior written consent of
Acromag, Inc.
Table of Contents
1.0 INTRODUCTION ………………………………..……..
DESCRIPTION …………………………………………
Key 61xT Isolator Features………..……………..…
ACCESSORY ITEM….…………………………………
AC Current Sensor (Model 5020-350)……………..
2.0 PREPARATION FOR USE ….………………………..
UNPACKING AND INSPECTION ……………………
INSTALLATION ………………………………………..
Jumper Installation (Current Input)……..………….
Mounting ………………………………………………
Electrical Connections ………………………………
3.0 MODULE CONFIGURATION…………………………
CONFIGURATION PROCEDURE……………………
4.0 THEORY OF OPERATION …………………………..
5.0 SERVICE AND REPAIR ………………………………
SERVICE AND REPAIR ASSISTANCE …………….
PRELIMINARY SERVICE PROCEDURE ..………….
6.0 SPECIFICATIONS …………………………………….
MODEL NUMBER DEFINITION………………………
INPUT SPECIFICATIONS …………………………….
OUTPUT SPECIFICATIONS …………..……………..
ENCLOSURE/PHYSICAL SPECIFICATIONS..……..
APPROVALS …………………………………………..
ENVIRONMENTAL SPECIFICATIONS ……………..
CONFIGURATION CONTROLS & INDICATORS…..
List of Drawings
Simplified Schematic (4501-731)…….………………….…
Electrical Connections (4501-732).……………….…..…...
AC Sensor Connections (4501-734)..………………..……
Enclosure Dimensions (4501-733)….………………..……
Page
2
2
3
3
3
4
4
4
4
4
4
5
5
7
7
7
7
7
8
8
8
9
9
9
10
Table 1: Models Covered in This Manual
-Factory
Series/
-Options/Output/
Input/Type Enclosure/Approvals1 Configuration2
611T3
-0500
-C
612T3
-0500
-C
Notes (Table 1):
1. Approvals: CE marked, UL and cUL listed.
(See specifications).
2. Include the “-C” suffix to specify factory configuration option.
Otherwise, no suffix is required for standard configuration.
3. Model 611T-0500 units have one input/output channel, while
612T-0500 units have two input/output channels.
DESCRIPTION
Series 61xT Isolators are members of Acromag’s vast line of
isolators, alarms, and transmitters. These models will accept one
channel (611T), or two channels (612T), of DC current or voltage
input, and provide a corresponding isolated process current or
voltage output. Universal inputs and outputs support process
current or voltage over a wide range. Units are easily calibrated
via push-buttons and status LED’s on the front of the module.
These isolators contain an advanced technology microcontroller
with integrated flash memory for non-volatile configuration and
calibration parameter data storage.
Modules may be field connected for process current or DC
voltage, input or output signals. Input and output ranges are
user-configured. The 611T model provides a single isolated
current or voltage input and output, while the 612T combines two
isolated current or voltage inputs, with two isolated current or
voltage outputs (outputs share common). Inputs may be
configured for any range from 0-100mA DC (4mA minimum
span), -100V to +100V DC (1.0V minimum span), or -1V to +1V
(40mV minimum span). Outputs may be configured for any
range from 0-20mA DC, or 0 to 10V DC. The minimum possible
output span is limited to a reasonable effective resolution, as
resolution will be diminished proportionally as the calibrated
output span is reduced from nominal. Each channel includes a
yellow LED on the front-panel to provide visual indication of an
over-range input signal and configuration status. Additionally, a
green “Run” LED indicates power and operation status.
Page
11
12
13
14
IMPORTANT SAFETY CONSIDERATIONS
The module uses a high resolution, low noise, Sigma-Delta,
Analog to Digital Converter (Σ-∆ ADC) to accurately convert the
input signals into digitized values. A microcontroller drives an
optically-isolated analog output used to generate a corresponding
process current or voltage. Units are DIN-rail mounted and
removable terminal blocks facilitate ease of installation and
replacement, without having to remove wiring. Transmitter power
and output wiring are inserted at one side of the unit, while input
wiring is inserted at the other side. Connectors are an industry
standard screw clamp type and accept a wide range of wire sizes.
It is very important for the user to consider the possible adverse
effects of power, wiring, component, sensor, or software failures
in designing any type of control or monitoring system. This is
especially important where economic property loss or human life
is involved. It is important that the user employ satisfactory
overall system design. It is agreed between the Buyer and
Acromag, that this is the Buyer's responsibility.
-2-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
An optional AC current sensor (Acromag Model 5020-350)
may be used in conjunction with the DC current input circuit of
this device to implement an AC current transmitter for inputs up
to 20A rms. The optional AC current sensor is itself an isolated,
accurate, toroidal instrument transformer, that outputs a safe,
low-level DC milliampere signal to the input of the transmitter. As
an isolated device, it adds an extra level of input isolation and
protection. See “AC Current Sensor” section for more
information.
Key 61xT Features…continued
•
•
•
All 61xT isolator modules are designed to withstand harsh
industrial environments. They feature RFI, EMI, ESD, EFT, and
surge protection, plus low temperature drift, wide ambient
temperature operation, and isolation from input to output and
channel to channel. They also have low radiated emissions per
CE requirements. The safe, compact, rugged, and reliable
design of these isolators makes them an ideal choice for control
room or field applications.
•
ACCESSORY ITEM
The following accessory is available from Acromag which
allows AC currents to be input to this module, and other modules
that support DC current inputs. Acromag offers a full line of other
standard and custom transmitter, isolator, and alarm types to
serve a wide range of applications (please consult the factory).
Key 61xT Features
•
•
•
•
•
•
•
•
•
•
Hardened For Harsh Environments - The unit will operate
reliably in harsh industrial environments and includes
protection from RFI, EMI, ESD, EFT, and surges, plus low
radiated emissions per CE requirements.
Convenient Mounting, Removal, & Replacement - The
DIN-rail mount and plug-in type terminal blocks make
module removal and replacement easy.
High-Resolution Precise A/D Conversion - Includes a
high-resolution, low noise, Sigma-Delta, Analog-to-Digital
Converter (Σ-∆ ADC), for high accuracy and reliability.
LED Indicators - Used to indicate power, operation,
configuration, under/over-range, and channel status.
Wide-Range Universal Input & Output Ranges - Supports
process current or voltage in user-configured ranges. The
unit may be calibrated for input ranges from 0-100mA DC
(4mA DC minimum input span), and input voltage ranges
from -100VDC to +100VDC (0.1V DC minimum input span),
or optionally –1V to +1V (40mV min input span). The output
supports current ranges from 0 to 20mA DC, and voltage
ranges from 0 to 10VDC. The minimum possible output
span is limited to a reasonable effective resolution, as
resolution will be diminished proportionally as the calibrated
output span is reduced from nominal. The current output
may drive up to 550Ω, typical. The voltage output includes
short circuit protection.
Optional AC Current Input - An optional AC current sensor
can be purchased separately to support AC current inputs.
Wide-Range DC-Powered - This device receives power
over a wide DC supply range and the power terminal is
diode-coupled. This makes the product useful for systems
with redundant supplies and/or battery back-up.
Over/Under-Range Indication - LED’s for each channel
indicate when the I/O signal is outside of the ±12.5% of
over/under-range automatically built into calibrated ranges.
Normal Or Reverse Acting Output - The output of this
transmitter may be calibrated for a normal (ascending), or
reverse acting (descending) response.
Easy Push-Button Configuration - Units are easily
configured and calibrated via push-buttons and status
indicators at the front of the module.
Configuration Lockout - To help prevent tampering or
inadvertent reconfiguration in the field, the calibration pushbuttons may be selectively locked out of reconfiguration
mode.
Fully Isolated - Input(s), output(s), and power are isolated
from each other for safety and increased noise immunity.
Inputs are isolated from each other, while outputs share
common and are not isolated from output-to-output.
Nonvolatile Reprogrammable Memory - This module has
an advanced technology microcontroller with integrated,
non-volatile, flash memory and EEPROM. This allows the
functionality of this device to be reliably reprogrammed
thousands of times.
Wide Ambient Operation - The unit is designed for reliable
operation over a wide ambient temperature range.
AC Current Sensor (Model 5020-350)
This optional sensor is an accurate toroidal instrument
transformer used to convert a sinusoidal 50-60Hz AC current
signal into a low level DC milliampere signal of 0 to 11.17mA.
The input AC current range is a simple function of the number of
turns placed through the toroid as shown in Table 2. This sensor
is isolated and requires no calibration or adjustment. A sensor
used with the 611T/612T provides redundant input isolation.
Table 2: AC Current Sensor Turns & Range
AC Current
Primary
Sensor Output
Input Range
Turns
(Red/Black Wires)
0 to 20A AC
1
0 to 11.17mA DC
0 to 10A AC
2
“
0 to 5A AC
4
“
0 to 2A AC
10
“
0 to 1A AC
20
“
The output wires of this sensor are polarized: Red is (+) plus
and Black is (-) minus. Normally these output wires are attached
to one end of a user supplied cable, and the other end of the
cable connects to the 611T/612T Transmitter’s process current
input terminals.
Input Burden: A function of the wire gauge resistance used
for the primary turns (current-carrying wire being monitored).
Input Overload: The AC current sensor will withstand
overload conditions as follows:
•
20 times full scale for 0.01 seconds.
•
10 times full scale for 0.1 seconds.
•
5 times full scale for 1.0 second.
AC Current Sensor to Transmitter Wiring Distance: 400
feet maximum for 18 gauge wire. Other wire gauges can be
used as long as the resistance of both wires is less than 5Ω.
-3-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
2.0 PREPARATION FOR USE
Jumper Installation (Current Input Only)
UNPACKING AND INSPECTION
For process current input ranges, a short jumper wire must
be installed between the input “JMP” terminals. This jumper is
not included from the factory. Remove this jumper for voltage
input applications. Refer to Electrical Connections Drawing
4501-732 for example connections.
Upon receipt of this product, inspect the shipping carton for
evidence of mishandling during transit. If the shipping carton is
badly damaged or water stained, request that the carrier's agent
be present when the carton is opened. If the carrier's agent is
absent when the carton is opened and the contents of the carton
are damaged, keep the carton and packing material for the
agent's inspection. For repairs to a product damaged in
shipment, refer to the Acromag Service Policy to obtain return
instructions. It is suggested that salvageable shipping cartons
and packing material be saved for future use in the event the
product must be shipped.
Mounting: Refer to Enclosure Dimensions Drawing 4501-733 for
mounting and clearance dimensions.
DIN Rail Mounting: This module can be mounted on "T"
type DIN rails. Use suitable fastening hardware to secure the
DIN rail to the mounting surface. Units may be mounted
side-by-side on 1-inch centers for limited space applications.
"T" Rail (35mm), Type EN50022: To attach a module to this
style of DIN rail, angle the top of the unit towards the rail and
locate the top groove of the adapter over the upper lip of the
rail. Firmly push the unit towards the rail until it snaps solidly
into place. To remove a module, first separate the input
terminal block(s) from the bottom side of the module to
create a clearance to the DIN mounting area. Next, insert a
screwdriver into the lower arm of the DIN rail connector and
use it as a lever to force the connector down until the unit
disengages from the rail.
This module is physically protected
with packing material and electrically
protected with an anti-static bag during
shipment. However, it is
recommended that the module be
visually inspected for evidence of
mishandling prior to applying power.
This circuit utilizes static sensitive
components and should only be
handled at a static-safe workstation.
Electrical Connections
Terminals can accommodate wire from 12-24 AWG, stranded
or solid. Strip back wire insulation 1/4-inch on each lead before
installing into the terminal block. Input wiring should be shielded
twisted-pair. Since common mode voltages can exist on signal
wiring, adequate wire insulation should be used and proper wiring
practices followed. It is recommended that transmitter output and
power wiring be separated from the input signal wiring for safety,
as well as for low noise pickup. Note that input, power, and
output terminal blocks are a plug-in type and can be easily
removed to facilitate module removal or replacement, without
removing individual wires. If your input is process current, you
must also install a short jumper wire between the input “JMP”
terminals. Be sure to remove power and/or disable the load
before unplugging the terminals to uninstall the module, installing
or removing jumpers, or before attempting service. All
connections must be made with power removed.
INSTALLATION
This transmitter module is packaged in a general purpose
plastic enclosure. Use an auxiliary enclosure to protect the unit in
unfavorable environments or vulnerable locations, or to maintain
conformance to applicable safety standards. Stay within the
specified operating temperature range. As shipped from the
factory, the unit is factory calibrated for the input & output ranges
shown in Table 3 below.
WARNING: Applicable IEC Safety Standards may require that
this device be mounted within an approved metal enclosure or
sub-system, particularly for applications with voltages greater
than or equal to 75VDC or 50VAC.
CAUTION: Risk of Electric Shock - More than one
disconnect switch may be required to de-energize the
equipment before servicing.
Table 3: 611T/612T Default Factory I/O Configuration
PARAMETER
CONFIGURATION/CALIBRATION
Input 1 Range1
0 to 10V DC1 or 0 to 99mV DC2
Output 1 Range
4 to 20mA DC
Input 2 Range1 (612T)
0 to 10V DC1 or 0 to 99mV DC2
Output 2 Range (612T)
4 to 20mA DC
* Shaded entries apply to dual channel Model 612T units only.
Notes (Table 3):
1. For current input ranges, a short jumper wire must be
inserted between the input “JMP” terminals (not included).
This jumper must be removed for voltage input ranges.
2. The optional low voltage range signal is input at the JMP
terminal adjacent to the V+ input with jumper removed.
1.
Power: Refer to Electrical Connections Drawing 4501-732.
Variation in power supply voltage within rated limits has
negligible effect on module accuracy. For supply
connections, use No. 14 AWG wires rated for at least 75°C.
The power terminal is diode-coupled for reverse polarity
protection.
2. DC Voltage/Current Inputs (Without AC Current Sensor):
Connect input(s) per Drawing 4501-732. Observe proper
polarity (see label for input type). For current inputs, the input
“JMP” terminals must be jumpered together. Place a short
jumper wire between these terminals to complete the input
circuit for current inputs only. Otherwise, voltage is delivered
to the “V+” input directly with this jumper removed (for ranges
greater than ±1V), or optionally to the JMP terminal adjacent
to V+ (for ranges below ±1V, with 1K input impedance).
Your application may differ from the default configuration and
will require that the transmitter’s input & output ranges be
reconfigured to suit your needs. Refer to the Configuration &
Calibration section for additional instructions.
-4-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
3. AC Current Input (Optional): Refer to Drawing 4501-734 to
connect the optional AC current sensor. The sensor is
typically mounted near the AC current being measured and
will transmit a low level DC milliampere signal to the module.
This allows the module to be mounted remote from the AC
signal and sensor and connected using small gauge wire.
The sensor output (Red/Black) wires can be shorted, opencircuited, or removed from the transmitter input terminals,
without hazard to personnel or to the sensor. Be sure to also
install a jumper between the input “JMP” terminals for current
input ranges.
Configuration of I/O zero & full-scale is accomplished via the
transmitter module’s “SET”, “MODE”, “UP”, and “DOWN” push
buttons, and the module’s status LED’s (see Drawing 4501-733)
as described in the following paragraphs.
Equipment Required
•
•
AC Current Sensor: Per Table 2 on Page 3, loop the
required number of turns through the toroid for the full-scale
current range required by your application. Use the cable tie
provided with the sensor to mechanically secure it.
An accurate input source (voltage or current) adjustable over
the configured input range. This source must be accurate
beyond the module specifications for best results. For
voltage inputs, use a voltage source with an output
impedance of 100Ω or less.
An accurate current or voltage meter is also required to
monitor the output level. This meter must be accurate
beyond the module specifications for best results.
IMPORTANT: Input levels outside of the module’s input and
output ranges are not acceptable for zero, or full-scale
calibration. Likewise, the absolute value of the input used
for full-scale calibration must be greater than the absolute
value of the input used for zero calibration. For nonsymmetric bipolar input ranges (-5V to +1V for example), if
the absolute magnitude of the lower endpoint of your range
is greater than the absolute magnitude of the higher
endpoint of your range, you will have to use the lower range
endpoint as your “full-scale” input signal level, the higher
range endpoint as your “zero” input signal, and perform a
reverse acting output calibraton (see Note 4 of the
Configuration Procedure). Since I/O levels cannot be
validated during field programming, entering incorrect
signals can produce an undesired output response. Be sure
to install a jumper between the input “JMP” terminals for
current input ranges and remove this jumper for voltage
input ranges.
DANGER: If the AC current sensor is used with an AC
Current Transformer (C.T.), disconnect power from the
C.T., or short the output of the C.T., before removing the
wire going through the AC current sensor. If this is not
done, an open circuited C.T. will generate hazardous high
voltages and possible C.T. damage.
4. Analog Output Connections: Wire output(s) as shown in
Electrical Connections Drawing 4501-732. Separate output
terminals are provided for voltage or current. Voltage and
current is output simultaneously for a channel, but the
channel can only be calibrated to one output range at a time.
Dual channel outputs share common and are not isolated
from output-to-output.
Note: For sensitive applications or high-speed sampling,
high frequency noise may be reduced at the load by placing a
0.1uF capacitor directly across the load.
CONFIGURATION PROCEDURE
5. Grounding: See Electrical Connections Drawing 4501-732.
The module housing is plastic and does not require an earth
ground connection.
If the “RUN” and “ST” LED’s are both ON, then the
configuration mode is locked-out and must be unlocked prior to
configuration by pressing the MODE and DOWN buttons at the
same time until the “ST” LED turns OFF. This allows the pushbuttons to be used to reconfigure the module as illustrated below.
WARNING: For compliance to applicable safety and
performance standards, the use of shielded cable is
recommended as shown in Drawing 4501-732. Further, the
application of earth ground must be in place as shown in
Drawing 4501-732. Failure to adhere to sound wiring and
grounding practices may compromise safety & performance.
The following procedure uses the corresponding channel outof-range LED’s (labeled “CH1” or “CH2”) to indicate which
parameter, zero or full-scale, is being programmed. In
configuration mode, the green power LED is turned OFF, and the
yellow “ST” LED is OFF. The yellow channel LED flashes, or is
constant ON, if full-scale or zero is being configured for a
channel. Refer to Table 4.
3.0 MODULE CONFIGURATION
The I/O ranges of this transmitter need to be configured and
calibrated for your application. Inputs may be configured for any
range from 0-100mA DC (4mA minimum span), -100V to +100V
DC (1.0V minimum span), or optionally –1V to +1V (40mV min
input span). Outputs may be configured for any range from 020mA DC, or 0 to 10V DC. The minimum possible output span is
limited to a reasonable effective resolution, as resolution will be
diminished proportionally as the calibrated output span is reduced
from nominal (see Output Resolution).
Table 4: LED Indication In Configuration Mode
CH1
CH2
CONFIG MODE
RUN1 ST
Set CH1 Full-Scale
OFF1
OFF2
Flashing
OFF
Set CH1 Zero
OFF1
OFF2
ON
OFF
Set CH2 Full-Scale
OFF1
OFF2
OFF
Flashing
Set CH2 Zero
OFF1
OFF2
OFF
ON
Notes (Table 4):
1. The green “Run” LED is turned OFF in configuration mode.
2. The yellow “ST” LED will flash one time each time SET is
pressed to capture a full-scale or zero I/O setting in
configuration mode.
Note that a normal acting (ascending), or reverse acting
(descending) output response may be configured by swapping
the full-scale & zero output levels during configuration.
-5-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
CAUTION: Do not insert sharp or oversized objects into the
push-button switch openings as this may damage the unit. When
depressing the push-buttons, use a blunt tipped object and apply
pressure gradually until you feel or hear the tactile response.
For a reverse acting output, you would adjust the output
level to a higher level in response to the zero input here, and
a lower level in response to a full-scale input in Step 6. See
Note 4.
11. Press the “SET” push-button to accept the zero I/O value.
Note that every time the “SET” button is pressed, the yellow
“ST” LED will flash once and the zero I/O point will be
captured.
12. Press the “MODE” push button a third time and the
program sequence for channel 1 will be completed.
1.
Connect a voltage or current source to the input, as required
(refer to Electrical Connections Drawing 4501-732).
2. Apply power and the module’s green “Run” LED will light.
3. If the yellow “ST” LED is also ON, then the reconfiguration
push-buttons must first be unlocked by simultaneously
pressing the “MODE” and “DOWN” button for one second.
The yellow “ST” LED should turn OFF (See Table 6). The
push-buttons may now be used to reconfigure the module.
4. Press and hold the “MODE” push button until the green
“RUN” LED turns OFF and the yellow “CH1” LED flashes. In
this mode, the unit is ready to accept a full-scale input signal
for transmitter input channel 1. If you do not wish to change
the full-scale parameter, skip to step 8.
5. Adjust the input source to the “full-scale” input signal level
according to your input range. The full-scale input signal
must be within the input range limits of the module. The
absolute value of this level must be greater than the
absolute value of the opposite endpoint—otherwise, see
Note 4.
6. Press the “UP” or “DOWN” push-button one time to cause
the module to auto-adjust the corresponding output level to
full-scale. If the output is not exactly at the desired full-scale
level, then each successive depression of the “UP” or
“DOWN” switch will increment or decrement the output
signal by a small amount. Holding the switch depressed will
increase the amount of increment or decrement. Note that a
reverse acting output response can be easily obtained by
using the push-buttons to adjust the output level accordingly.
For a reverse acting output, you would adjust the output
level to a lower level here in response to the full-scale input,
and a higher level in response to a zero input in Step 10.
See Note 4.
7. Press the “SET” push-button to accept the full-scale I/O
value. Note that every time the “SET” button is pressed, the
yellow “ST” LED will flash once and the full-scale I/O point
will be captured.
8. Press the “MODE” push button one more time. The green
“RUN” LED will still be OFF and the yellow “CH1” LED will
be ON, indicating that the unit is ready to accept the zero
value for input channel 1. If you do not wish to change the
channel 1 zero parameter, skip to step 12.
9. Adjust the input source to the “zero” input signal according
to your input range. The “zero” input signal must be within
the input range limits for the module. The module uses the
full-scale and zero levels to set the input span (span = fullscale - zero). The absolute value of this level must be
less than the absolute value of the opposite endpoint—
otherwise, see Note 4.
10. Press the “UP” or “DOWN” push-button one time to cause
the module to auto-adjust its output level to a zero output
level. If the output is not exactly at the desired zero level,
then each successive depression of the “UP” or “DOWN”
switch will increment or decrement the output signal by a
small amount. Holding the switch depressed will increase
the amount of increment or decrement. Note that a reverse
acting output response can be easily obtained by using the
push-buttons to adjust the output level accordingly.
Model 611T units will return to run mode at this point and
calibration is complete (the green “RUN” LED will turn ON).
You may skip ahead to step 14 to optionally lock-out
reconfiguration mode.
On 612T models, the green “RUN” LED will still be OFF, the
yellow “CH1” LED will turn OFF, and the yellow “CH2” LED
will flash. In this mode, the unit is ready to accept a fullscale input signal for transmitter input channel 2. To
calibrate the second I/O channel, repeat steps 4-11
substituting channel 2 for channel 1. If you do not wish to
program channel 2, skip to step 13.
13. Press the “MODE” push button a fourth time on 612T units
and the module will return to run mode. The green “RUN”
LED will turn ON, the status LED is OFF, and the channel
LED’s will now reflect over/under range status. Calibration
is complete at this point. Note that during configuration, until
“SET” is pressed, pushing “MODE” will only toggle between
the full-scale & zero I/O sequence, without affecting their
values. Further, if no push-buttons are depressed within 2
minutes, then the module will automatically revert to run
mode (green “Run” LED will light) and no changes will be
made to the original zero or full-scale I/O settings.
14. OPTIONAL CONFIGURATION LOCK-OUT - At any time,
you may optionally lock-out the push-buttons to prevent
inadvertent reconfiguration or tampering in the field. The
unit may be locked out of configuration mode by pressing
the MODE and UP push-buttons simultaneously for 1
second. The status LED will turn ON to indicate that the
lock feature is enabled. You may unlock the configuration
mode by pressing the MODE and DOWN buttons
simultaneously for one second. The status LED will be
turned OFF to indicate the lock is disabled.
Notes (Configuration Procedure):
1. In configuration mode, the module’s LED’s are used to
indicate the program sequence as illustrated in Table 5:
Table 5: Configuration Mode LED Indication
LED
LED
INDICATOR
LED ON
LED OFF
FLASHING
Green “RUN” Run Mode Config Mode
NA
Yellow “CH1”
Calibrate
Calibrate
Cal CH1
CH1 Zero
CH2
Full-Scale
Yellow “CH2”
Calibrate
Calibrate
Cal CH2
CH2 Zero
CH1
Full-Scale
Yellow “ST”
NA
NA
One Flash as
SET pressed
2. The reconfiguration push-buttons may be alternately locked
out, or unlocked as illustrated in Table 6:
-6-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
5.0 SERVICE AND REPAIR
Notes (Configuration Procedure)…continued:
Table 6: Configuration Mode Lock
ACTION
Status LED PUSH-BUTTONS
Lock-out
ON
Press “MODE” + “UP
Configuration
(Locked)
ARROW” Together To
Lock
Unlock
OFF
Press “MODE” + “DOWN
Configuration
(Unlocked)
ARROW” Together To
Unlock
CAUTION: Risk of Electric Shock - More than one
disconnect switch may be required to de-energize the
equipment before servicing.
SERVICE AND REPAIR ASSISTANCE
This module contains solid-state components and requires no
maintenance, except for periodic cleaning and transmitter
configuration parameter (zero, full-scale) verification. Since
Surface Mounted Technology (SMT) boards are generally difficult
to repair, it is highly recommended that a non-functioning module
be returned to Acromag for repair. The board can be damaged
unless special SMT repair and service tools are used. Further,
Acromag has automated test equipment that thoroughly checks
and calibrates the performance of each module. Please refer to
Acromag’s Service Policy Bulletin or contact Acromag for
complete details on how to obtain service parts and repair.
3. If the module is in field configuration mode and no push
buttons are pressed after 2 minutes, then the module will
return to the run mode, the green “Run” LED will light, and no
changes to any program parameters will be made.
4. If you want to calibrate a bipolar range that is non-symmetric
around 0 and where the absolute value of the low-endpoint of
the input range is greater than the absolute value of the high
endpoint of the range (for example: -5V to +1V), then you
must use the low endpoint of your range as your “full-scale”
input signal (Step 5), the high endpoint of your range as the
“zero” input signal (Step 9), and perform a reverse acting
output calibration (Steps 6 & 10). For example, to calibrate
-5V to +1V at the input for 4mA to 20mA at the output, in
Step 5 of the Configuration Procedure you would use -5V as
your “full-scale” input signal. In step 6, you would adjust the
output to 4mA for the full-scale output (reverse acting). Later
in step 9, you would use +1V as your “zero” input signal.
Then in step 10, you adjust the output to 20mA for the zero
output level (reverse acting).
PRELIMINARY SERVICE PROCEDURE
Before beginning repair, be sure that all installation and
configuration procedures have been followed. The unit routinely
performs internal diagnostics following power-up or reset. During
this period, all LED’s will turn ON momentarily, and the green
“Run” LED flashes. If the diagnostics complete successfully, the
“Run” LED will stop flashing after approximately one second and
remain ON. This indicates that the unit is operating normally. If
the “Run” LED continues to flash, then this is indicative of a
problem with the unit. In this case, you should try to reconfigure
the module and this may cure the problem. If the diagnostics
continue to indicate a problem (a continuously flashing green
LED), or if other evidence points to a problem with the unit, an
effective and convenient fault diagnosis method is to exchange
the questionable module with a known good unit.
4.0 THEORY OF OPERATION
Refer to Simplified Schematic 4501-731 to gain a better
understanding of the circuit. Note that this transmitter will prefilter a signal and convert the signal to a scaled voltage--either
through a voltage divider circuit (voltage input), or a current sink
resistor (current input). An A/D converter stage then applies
appropriate gain to the signal, performs analog-to-digital
conversion, and digitally filters the signal. The digitized signal is
then transmitted serially to a microcontroller. The microcontroller
drives an optical isolator and filter circuit. A corresponding
analog output voltage is generated and used to drive a voltage to
current converter (current output), and an amplifier (voltage
output), in tandem. I/O range configuration and calibration
parameters are stored in non-volatile memory. A wide input
range switching regulator provides separately isolated power to
the input and output circuits.
Acromag Application Engineers can provide further technical
assistance if required. When needed, complete repair services
are available from Acromag.
6.0 SPECIFICATIONS
611T-0500-C, One I/V Input, Single Process I/V Output
612T-0500-C, Two I/V Inputs, Dual Process I/V Outputs
General: The 611T/612T Transmitters are DC powered
isolators for one or two channels of process current or
voltage. Isolation is supplied between the inputs, output, and
power. Inputs are isolated channel-to-channel. Output
channels share common and are not isolated from each
other. This transmitter is DIN-rail mounted.
The unit is configured and calibrated via front panel pushbuttons and status LED’s. Refer to Module Configuration.
All calibration and configuration information is stored in nonvolatile reprogrammable memory in the module.
-7-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
MODEL NUMBER DEFINITION
Input Bias Current: ±100nA maximum, excluding excitation
current of process current inputs.
Input Filter: Normal mode filtering, plus digital filtering,
optimized and fixed per input range within the Σ-∆ ADC.
Bandwidth: -3dB @ 1Hz typical.
Noise Rejection (Normal Mode): Better than 60dB @
60Hz, typical with 100Ω input unbalance (10.0Ω for
process currents).
Noise Rejection (Common Mode): Better than 100dB @
60Hz, typical with 100Ω input unbalance (10.0Ω for
process currents).
Analog to Digital Converter (A/D): 16-bit Σ-∆ converter.
Input Conversion Rate: 4.6 conversions per channel, per
second (612T). 20 conversions per second (611T).
Transmitters are color coded with a white label. The prefix “6”
denotes the Series 600, while the “T” suffix specifies that this
device is primarily a process transmitter.
61xT: A DC powered, field-programmable module that provides
isolation for one channel (611T), or two channels (612T),
of process current or voltage input and output signals in
user-defined ranges.
-0500: The four digits of this model suffix represent the following
options, respectively:
0 = Option Specifier - No Option;
5 = Output: Transmitter Voltage or Current;
0 = Enclosure: DIN rail mount;
0 = Approvals: CE marked
UL listed (UL3121)
cUL listed
(Canada Standard C22.2, 1010.1-92)
OUTPUT SPECIFICATIONS
These units utilize an optically isolated output voltage that drives
a process current and output voltage circuit in tandem. The
output current or voltage can be set to any value within nominal
output range limits. Although output voltage and current is
simultaneous at different terminals, calibration may only occur
with respect to one of the outputs at a time. Further, outputs
share common and are not isolated output-to-output. A reverse
acting output response can be easily obtained by adjusting the
output minimum and maximum levels accordingly during zero and
full-scale reconfiguration.
INPUT SPECIFICATIONS
Unit must be wired and configured for the intended input type and
range (see Installation Section for details). Input ranges are userconfigured within the limits of the input given below. The
following paragraphs summarize this model’s input types, ranges,
and applicable specifications.
Voltage Output Specifications:
Output Range: Output range is user-configured and based
on a nominal output range of 0-10VDC (approximately -1
to +11V including over-range). Approximately ±12.5% of
over-range is already built into calibrated output ranges.
For rated performance, output spans from 5V minimum
to 10V maximum are recommended. See Table 7.
Output Resolution: Varies with calibrated output range.
Nominal output resolution is 1 part in 6644 (12.7 bits) and
based on a 0-10V, or 0-20mA, nominal calibrated output
range. The minimum possible output span is limited to a
reasonable effective resolution, as resolution will be
diminished proportionally as the calibrated output span is
reduced from nominal. Over-range of approximately
±12.5% is already built into a calibrated range and will not
degrade the nominal effective resolution. See Table 7.
Output Load Current: 0-10mA DC maximum.
Output Impedance: 1Ω, Typical.
Output Short Circuit Protection: Included
DC (Process) Current: Any user-configured input range within
nominal range limits of 0-100mA, 4mA minimum input span.
Over/under-range of ±12.5% is automatically built into
calibrated spans. A precision 10.0Ω current sink resistor is
placed in the “I+” input lead and converts the input current to
a voltage that is processed by the A/D converter. The input
“JMP” terminals must be jumpered together to utilize current
input.
Current Input Reference Test Conditions: Input = 4-20mA;
Ambient Temperature = 25°C; Power Supply = 24VDC;
Output = 4-20mA.
Input Overvoltage Protection: Bipolar Transient Voltage
Suppressers (TVS), 8V clamp level typical.
Input Resistance (Current): 10.0Ω.
DC Voltage: A user-configured input range within limits of -100V
to +100V DC, 1.0V minimum input span, for inputs at V+
(101KΩ input impedance here). Optionally, small voltage
signals within limits of –1V to +1V with a 40mV minimum
input span can be connected to the JMP terminal adjacent to
V+ (1KΩ input impedance).
Voltage Input Reference Test Conditions: 0 to 10V DC
input; Ambient Temperature = 25°C; Power Supply = 24V
DC; Output = 4-20mA.
Input Resistance (Voltage): 101KΩ at V+ (±100V input);
1KΩ at JMP terminal adjacent to V+ input (±1V input).
Input Overvoltage Protection: Bipolar Transient Voltage
Suppressers (TVS), 135V clamp level typical.
Current Output Specifications:
Output Ranges: Output range is user-configured and must
reside within the nominal range limits of 0 to 20mA DC
(0-22mA including over-range). Approximately ±12.5% of
over/under-range is already built into calibrated ranges.
Output spans from 10mA minimum to 20mA maximum
are recommended for rated performance.
General Input Specifications
Accuracy: See General Output Specifications.
Resolution: 1 part in 6644 or 12.7 bits effective. Input
resolution is actually 16 bits internally, but limited by the
output resolution of 12.7 bits. See Output Resolution
below.
-8-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
ENVIRONMENTAL SPECIFICATIONS
Output Resolution: Varies with calibrated output range.
Nominal resolution is 1 part in 6644 (12.7 bits) and based
on a 0-20mA, or 0-10V, nominally calibrated output
range. The minimum possible output span is limited to a
reasonable effective resolution, as resolution will be
diminished proportionally as the calibrated output span is
reduced from nominal. Over-range of ±12.5% is already
built into a calibrated range and will not affect effective
resolution calculations. See Table 7.
Output Maximum Current: 21.8mA DC, Typical.
Output Compliance: 10.9V DC, Typical.
Output Load Resistance Range: 0 to 550Ω, Typical.
Operating Temperature: -25°C to +70°C (-13°F to +158°F).
Storage Temperature: -40°C to +85°C (-40°F to +185°F).
Relative Humidity: 5 to 95%, non-condensing.
Power Requirements: +10V Minimum to +36V DC Maximum.
Current draw is a function of supply voltage (see Table 8).
Current shown in Table 8 assumes that each output is
delivering full-scale current (20mA). An internal diode
provides reverse polarity protection.
CAUTION: Do not exceed 36VDC peak, to avoid
damage to the module.
Table 7: Output Range Effective Resolution
Output Range
Effective Resolution
0 to 20mA DC
1 part in 6644
4 to 20mA DC
1 part in 5315
0 to 11.17mA DC
1 part in 3711
0 to 10mA DC
1 part in 3322
0 to 10V DC
1 part in 6644
0 to 5V DC
1 part in 3322
Table 8: 611T/612T Power Supply Current
Supply
Model
Model
Voltage
611T-0500
612T-0500
10V
110mA
180mA
12V
95mA
150mA
15V
80mA
115mA
24V
55mA
75mA
36V
35mA
65mA
General Output Specifications
Accuracy: Better than ±0.1% of output span typical for
nominal output ranges of 0-10V or 0-20mA. This
includes the effects of repeatability, but not sensor error.
Actual accuracy will vary with effective I/O resolution
according to the calibrated I/O range.
Accuracy Versus Temperature: Better than ±0.010%
(±100ppm) of output span per °C for nominal calibrated
output ranges of 0-10V, or 0-20mA.
Output Response Time: 800ms typical, 1000ms maximum,
to 98% of output transition for a step change in the input.
Power Supply Effect:
DC Volts: Less than ±0.001% of output span change per
volt DC for rated power supply variations.
60/120 Hz Ripple: Less than 0.01% of output span per volt
peak-to-peak of power supply ripple.
Isolation: Inputs, output, & power circuits are isolated from each
other for common-mode voltages up to 250VAC, or 354V DC
off DC power ground, on a continuous basis (will withstand
1500VAC dielectric strength test for one minute without
breakdown). This complies with test requirements outlined in
ANSI/ISA-82.01-1988 for the voltage rating specified.
Isolation rating applies input-to-output, power-to-input, and
power-to-output. Outputs share common and are not isolated
from each other.
Input-to-Input: Inputs are isolated from each other for
voltages up to 200V AC or DC peak.
Installation Category: Designed to operate in an Installation
Category (Overvoltage Category) II environment per IEC
1010-1 (1990).
Radiated Field Immunity (RFI): Designed to comply with
IEC1000-4-3 Level 3 (10V/M, 80 to 1000MHz AM & 900MHz
keyed) and European Norm EN50082-1.
Electromagnetic Interference Immunity (EMI): No output shift
will occur beyond ±0.25% of span, under influence of EMI
from switching solenoids, commutator motors, & drill motors.
Electrical Fast Transient Immunity (EFT): Complies with
IEC1000-4-4 Level 3 (2KV power; 1KV signal lines) and
European Norm EN50082-1.
Electrostatic Discharge (ESD) Immunity: Complies with
IEC1000-4-2 Level 3 (8KV/4KV air/direct discharge) to the
enclosure port and European Norm EN50082-1.
Surge Immunity: Complies with IEC1000-4-5 Level 3 (2.0KV)
and European Norm EN50082-1.
Radiated Emissions: Meets or exceeds European Norm
EN50081-1 for Class A equipment.
ENCLOSURE/PHYSICAL SPECIFICATIONS
Unit is packaged in a general purpose plastic enclosure that is
DIN rail mountable for flexible, high density (approximately 1”
wide per unit) mounting. See Enclosure Dimensions Drawing
4501-733 for details.
Dimensions: Width = 1.05 inches, Height = 4.68 inches, Depth
= 4.35 inches (see Drawing 4501-733).
DIN Rail Mounting (-xx0x): DIN rail mount, Type EN50022; “T”
rail (35mm).
Connectors: Removable plug-in type terminal blocks;
Current/Voltage Ratings: 15A/300V; Wire Range: AWG #24
to 12, solid or stranded; separate terminal blocks are
provided for input 1, input 2, power, and outputs.
Case Material: Self-extinguishing NYLON type 6.6 polyamide
thermoplastic, UL94 V-2, color beige; general purpose NEMA
Type 1 enclosure.
Printed Circuit Boards: Military grade FR-4 epoxy glass.
Shipping Weight: 1 pound (0.45 Kg) packed.
APPROVALS (-xxx0)
0: CE, UL, & cUL approvals.
All units comply with European Community “CE” marking, plus
applicable CSA, UL, and FM standards. Consult the factory for
current available agency approvals (e.g. CSA, FM, UL, etc.).
-9-
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
CONFIGURATION CONTROLS & INDICATORS
Notes:
Units are configurable via push-buttons and status indicators on
the front panel of the module. These controls and indicators
operate as follows:
Module Push Buttons (See Dwg 4501-733 for Location):
Mode - Used to change between Run and Configuration
Modes.
Set - Used to capture I/O settings during configuration.
Up - Used to increment output level during configuration.
Down - Used to decrement output level during configuration.
Mode + Up - Press together to lock out Configuration Mode
and help prevent inadvertent field reconfiguration (Status LED
turns ON).
Mode + Down - Press together to unlock Configuration Mode
and allow reconfiguration (Status LED turns OFF).
LED Indicators (See Dwg 4501-733 for Location):
Operating (Run) Mode
Run (Green) - Constant ON indicates power is applied and
unit is operating normally. Flashing ON/OFF indicates that
unit is performing diagnostics (first second following powerup), or has failed diagnostics (after a few seconds).
Module Status STAT (Yellow) - ON if push-buttons are
locked out to prevent inadvertent field reconfiguration. OFF if
Configuration Mode is unlocked to allow reconfiguration. See
Table 6.
Channel 1 Status CH1 (Yellow) - ON if input 1 out of range.
Approximately ±12.5% of over-range is built into the
calibrated range and this LED turns ON if the signal goes
beyond this over-range limit.
Channel 2 Status CH2 (Yellow) - ON if input 2 out of range.
Approximately ±12.5% of over-range is built into the
calibrated range and this LED turns ON if the signal goes
beyond this over-range limit.
Configuration Mode (Also See Table 5)
Run (Green) - Turned OFF in this mode.
Status (Yellow) - Turned OFF, but blinks each time the
“SET” button is pressed to capture an I/O signal in
configuration mode.
Channel 1 Status CH1 (Yellow) - ON if CH1 zero is being
configured. Flashes if CH1 full-scale is being configured.
Channel 2 Status CH2 (Yellow) - ON if CH2 zero is being
configured. Flashes if CH2 full-scale is being configured.
Input Type Jumper (See Drawing 4501-732): A short jumper
wire must be installed between the input “JMP” terminals to
utilize current input ranges. Remove input “JMP” jumper for
voltage input.
Normal/Reverse Acting Output Selection: A normal or reverse
acting output signal is selected by exchanging the maximum
and minimum output adjustment levels as required during
full-scale and zero calibration.
- 10 -
INPUT CONDITIONING
NC
I
N
P
U
T
1
11
12
V1+
JMP
13
14
15
ISOLATED OUTPUTS
SSR's
-1.0V to +1.0V
(40mV MIN SPAN)
OPTIONAL LOW-V INPUT
(JUMPER REMOVED)
JMP
I1+
CH1 Switches Are Shorts For
Single Channel Version (611T)
-100V to +100V
(1V MIN SPAN) 100K
0-100mA
(4mA MIN SPAN)
10.0
FILTER
INPUT CONDITIONING
- 11 -
I
N
P
U
T
2
V2+
JMP
23
24
-100V to +100V
100K
(1V MIN SPAN)
I2+
25
0-100mA
(4mA MIN SPAN)
10.0
42
V1+
41
INTEGRATED EEPROM
AND FLASH MEMORY
FILTER
AMPLIFIER
FILTER
46
O
U
T
P
U
T
1
612T ONLY
I2+
45
V2+
44
1K
O
U
T
P
U
T
2
RTN
JUMPER
(CURRENT INPUT ONLY)
26
RTN2
+16V
OUTPUT
CIRCUIT
POWER
ISOLATED CHANNEL 2 (612T ONLY)
BIAS
INSTALL I+ TO JMP JUMPER
FOR CURRENT INPUT ONLY
VOLTAGE TO
CURRENT
CONVERTER
SSR's
-1.0V to +1.0V
(40mV MIN SPAN)
OPTIONAL LOW-V INPUT
(JUMPER REMOVED)
JMP
I1+
RTN
16 BIT A/D
CONVERTER
AND
MULTIPLEXER
612T ONLY
22
AMPLIFIER
FILTER
MICROCONTROLLER
AND SUPPORT LOGIC
ISOLATED CHANNEL 1
21
43
1K
JUMPER
(CURRENT INPUT ONLY)
16
RTN1
NC
VOLTAGE TO
CURRENT
CONVERTER
+5V
INPUT CIRCUIT
POWER
ADDITIONAL TRANSIENT PROTECTION
AND FILTER CIRCUITRY NOT SHOWN
SERIES 611T/612T SIMPLIFIED SCHEMATIC
POWER ISOLATION
31
DC+
10-36 VDC
POWER
SWITCHER
32
10-36VDC
DC33
NC
34
NC
35
NC
36
NC
4501-731D
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
SCREW TERMINAL NUMBER
ANALOG OUTPUT
MODEL 61xT INPUT CONNECTIONS AT TB1/TB2
PLACE A JUMPER WIRE
BETWEEN JMP TERMINALS
FOR CURRENT INPUT SIGNALS
NC
NC
11
12 V +
13 JMP
+
2-WIRE
XMTR
TB1
TB1
14 JMP
15 I +
-
16 RTN
DC
PWR
NC
PLACE A JUMPER WIRE
BETWEEN JMP TERMINALS
NC
FOR CURRENT INPUT SIGNALS
DC
CURRENT
(mA)
11
VOLTAGE
OUT LOAD
OR
CURRENT
OUT LOAD
I
+ +
-
DC POWER
RL
10 TO 36V DC
+
12 V +
13 JMP
14 JMP
15 I +
+
SHIELDED CABLE
EARTH GROUND
16 RTN
OUTPUTS SHARE COMMON
AND ARE NOT ISOLATED
OUTPUT-TO-OUTPUT
TB4
NOTE 1
OUTPUT 2
(612T ONLY)
TB3
TB4
EARTH
GROUND
NOTE 1
TWO-WIRE TRANSMITTER
DOWN SWITCH
16 RTN
NOTE 1
MODEL 611T-0500
MODEL 612T-0500
INPUT 1
MODEL 612T-0500
INPUT 2
I+
RTN
JMP
V+
11 12 13 14 15 16
R
JMP
TB2
I+
RTN
JMP
V+
AC CURRENT SENSOR INPUT
JMP
+/-40mV to +/-1V DC RANGES
(V-IN AT JMP TERMINAL)
1K INPUT IMPEDANCE
+
SET SWITCH
TB1
DC VOLTAGE INPUT
(UNIPOLAR OR BIPOLAR)
PWR
MODEL
612T-0500
UP SWITCH
14 JMP
15 I +
SET
NOTE 1
OUTPUT 2 OUTPUT 1
DC+
CHANNEL 1 LED (YELLOW)
MODE SWITCH
DC-
12 V +
13 JMP
36 35 34 33 32 31
TB3
MODE
2
11
46 45 44 43 42 41
RTN
CHANNEL 2 LED (YELLOW)
I+
-
16 RTN
-
LOW
VOLTAGE
SOURCE
+
CH
V+
14 JMP
15 I +
1
RUN/PWR LED (GREEN)
STATUS LED (YELLOW)
V+
- 12 -
NC
NC
NC
VOLTAGE
SOURCE
ST
RTN
11
12 V +
13 JMP
RUN
I+
TB1
NC
PLACE A JUMPER WIRE
BETWEEN JMP TERMINALS
FOR CURRENT INPUT SIGNALS TB1
NC
AC CURRENT
SENSOR RED WIRE (+) NC
5020-350 BLACK WIRE (-)
Acromag
TB4
+/-1V to +/-100V DC RANGES
101K INPUT IMPEDANCE
+
DC CURRENT INPUT (mA)
21 22 23 24 25 26
TB1
NC
NC
NC
NC
-
11
12 V +
13 JMP
14 JMP
15 I +
16 RTN
NOTE 1
LOW DC VOLTAGE INPUT
(UNIPOLAR OR BIPOLAR)
NOTE 1: THIS GROUND CONNECTION IS RECOMMENDED FOR BEST
RESULTS. IF SENSORS ARE INHERENTLY CONNECTED TO GROUND,
USE CAUTION AND AVOID MAKING ADDITIONAL GROUND CONNECTIONS
WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR.
TB1
TB1
REMOVABLE
(PLUG-IN TYPE)
TERMINAL BLOCKS
WARNING:
FOR COMPLIANCE TO APPLICABLE SAFETY AND PERFORMANCE STANDARDS,
THE USE OF SHIELDED CABLE IS RECOMMENDED AS SHOWN. ADDITIONALLY,
THE APPLICATION OF EARTH GROUND MUST BE IN PLACE AS SHOWN IN THIS
DRAWING. FAILURE TO ADHERE TO SOUND WIRING AND GROUNDING
PRACTICES MAY COMPROMISE SAFETY AND PERFORMANCE.
SAFETY GUIDELINES MAY REQUIRE THAT THIS DEVICE BE HOUSED IN AN
APPROVED METAL ENCLOSURE OR SUB-SYSTEM, PARTICULARLY FOR
APPLICATIONS WITH VOLTAGES GREATER THAN OR EQUAL TO 75VDC/50VAC.
TB2
TB2 (612T ONLY)
CURRENT INPUT JUMPER
INPUT CONNECTIONS
(SEE INPUT CONNECTIONS AT LEFT)
4501-732B
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
ELECTRICAL CONNECTIONS
APPLICATION EXAMPLE A: AC CURRENT TRANSFORMER (C.T.)
611T/612T INPUT
CONNECTIONS
WIRE NUT
FIGURE 1
NC
NOTE: DESIGN ALLOWS
INADVERTANT
OPENS OR SHORTS.
LEADS
12 INCHES
NOMINAL
RED
AC CURRENT
SENSOR
NC
+
V+
JMP
JMP
MOUNTED IN
POWER AREA
EARTH GROUND
400 FEET
18 GA. WIRE
(5 OHMS)
INSULATED
WIRE
12 IN.
FIGURE 2
RED
USER SUPPLIED
AC CURRENT
TRANSFORMER. (C.T.)
+
BLACK -
NOTE 1: THIS GROUND CONNECTION
IS RECOMMENDED. IF UNIT HAS TWO
INPUTS, GROUND ONLY ONE INPUT, DO
NOT CONNECT THE SECOND INPUT
TO GROUND AS THIS WOULD PRODUCE
A GROUND LOOP.
- 13 -
AC CURRENT
SENSOR
MOUNTED IN
POWER AREA
WIRE NUT
NOTE: DESIGN ALLOWS
INADVERTANT
OPENS OR SHORTS.
1.05
0.375
(MIN.)
I+
RTN
SEE NOTE 1
DANGER:
AC CURRENT TRANSFORMER (C.T.) CONNECTIONS:
DISCONNECT POWER TO C.T. OR SHORT OUTPUT OF C.T.
BEFORE REMOVING INPUT CONNECTIONS TO AC CURRENT
SENSOR. IF THIS PROCEDURE IS NOT FOLLOWED, AN OPEN
CIRCUIT C.T. WILL GENERATE HIGH VOLTAGES AND POSSIBLE
C.T. DAMAGE WILL RESULT.
FIGURE 3
RED
+
611T/612T INPUT
CONNECTIONS
CAUTION:
CONNECT MODULE TO
AC CURRENT SENSOR
ONLY.
DO NOT CONNECT AC
CURRENT DIRECTLY
TO MODULE INPUT
TERMINALS.
APPLICATION EXAMPLE B: 115V/230VAC ELECTRICAL CIRCUIT
INPUT RANGE SELECTION
BLACK -
V+
JMP
JMP
AC CURRENT
SENSOR
TABLE 1: TURNS CHART
1.35
NC
BLACK
TURN COUNT: NUMBER OF WIRES
PASSING THROUGH CENTER HOLE
(SEE INPUT RANGE SELECTION TABLE).
AC CURRENT
SENSOR
NC
RED +
I+
RTN
BLACK -
AC CURRENT
5 AMPS
FULL SCALE
(4 TURNS)
AC CURRENT 5 AMPS
FULL SCALE (4 TURNS)
INPUT RANGE (RMS)
TURNS
0 TO 20A
0 TO 10A
0 TO 5A
0 TO 2A
0 TO 1A
1
2
4
10
20
AC
LOAD
AC
SOURCE
611T/612T INPUT
CONNECTIONS
MOUNTED IN
POWER AREA
LEADS
12 INCHES
NOMINAL
RED
NC
WIRE NUT
NOTE: DESIGN ALLOWS
INADVERTANT
OPENS OR SHORTS.
+
DANGER:
HIGH VOLTAGE
EARTH GROUND
AC CURRENT
20 AMPS
FULL-SCALE
(1-TURN)
V+
JMP
JMP
I+
RTN
BLACK -
AC CURRENT
SENSOR
ACROMAG
MODEL 5020-350
NC
SEE NOTE 1
CAUTION:
CONNECT MODULE TO
AC CURRENT SENSOR
ONLY.
DO NOT CONNECT
AC CURRENT DIRECTLY
TO INPUT TERMINALS.
AC CURRENT SENSOR CONNECTIONS
4501-734A
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
CAUTION: DO NOT CONNECT AC
CURRENT DIRECTLY TO MODULE
INPUT TERMINALS.
RUN
ST
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
(118.9)
4.68
CH
1
2
MODE
(95.3)
3.75
CL
SET
(59.4)
2.34
- 14 -
SCREWDRIVER SLOT FOR
REMOVAL FROM "T" RAIL
R
1.05
(26.7)
3.90
(99.1)
4.35
(110.5)
NOTE: ALL DIMENSION ARE IN INCHES (MILLIMETERS)
SERIES 611T/612T TRANSMITTER
ENCLOSURE DIMENSIONS
4501-733A
Series 611T/612T Isolator User's Manual
Universal DC Voltage/Current Input
___________________________________________________________________________________________
Acromag